@inproceedings{kim-kang-2026-cpc, title = "{CPC}-{GRPO}: Answer-Free Reinforcement Learning with Cross-Prompt Consensus Rewards", author = "Kim, Gyunyeop and Kang, Sangwoo", editor = "Liakata, Maria and Moreira, Viviane P. and Zhang, Jiajun and Jurgens, David", booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {ACL} 2026", month = jul, year = "2026", address = "San Diego, California, United States", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/ingest-acl/2026.findings-acl.1486/", pages = "29733--29748", ISBN = "979-8-89176-395-1" }